Out on the water, I was not disappointed. The GT70 moved along at 13.7 knots while those MTUs turned 1,200 rpm and burned 50 gallons per hour. That was a tame speed for this battlewagon. When she opened up to 20.5 knots at 1,500 rpm (100 gph), it was time to hold on. The pure thrust this yacht delivers will get her 120,000 pounds up and out of the hole in a hurry. My test vessel easily made 34.3 knots at 2,100 rpm (192 gph), and on the pins, the GT70 hit 40.9 knots at 2,450 rpm (266 gph). In addition to specifying sheer horsepower, the Hatteras design team created an effective and efficient modified-V hull form with double chines and side step-outs that deliver a sharp, soft ride with reduced spray. Also noteworthy was the lack of noise. There was not a significant jump in the decibel level as she increased speed, and conversation was easy thanks to the underwater exhaust that kicks in as engine rpm increases. Snug-fitting and quiet side curtains from Florida’s P&R Canvas helped too.